Shingle-machine



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SHINGLE MACHINE V I No. 569,051. Patented Oct. 6, 1896;

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SHINGLE MACHINE.

Patented-Oct. 6 1896-.

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- W. J. PERKINS. SHINGLE MACHINE.

Patented Oct. 6, 1896.

By W

X44 ATTORNEY THE mums mas co. mmuirrwa, wh'sulucron, o. c.

UNITED STATES PATENT OFFICE.

.IVILLIS J. PERKINS, OF GRAND RAPIDS, MICHIGAN.

SHlNGLE-MACHINE.

SPECIFICATION formingpart of Letters Patent No. 569,051, dated October6, 1896.

Application filed April 3, 1894. Serial No. 506,198. (No model.)

To all whom it may concern.-

Be it known that I, WILLIS J. PERKINS, a citizen of the United States,residing at the city of Grand Rapids, in the county of Kent and State ofMichigan, have invented certain new and useful Improvements in Shingle-Machines, of which the following is a specification.

This invention relates to shinglesawing machines, and more particularlyto that class of shingle-machines commonly called hand machines, inwhich thebolt-carriage is moved backward and forward by the operator.

The invention refers to the mechanism for shifting or tilting thetilt-table an d the mechanism for feeding or propelling of the bolt toand over the saw in order to saw or cut the shingles from the bolt; andthe objects of my invention are, first, to tilt or shift the tilttablewith the least possible expenditure of force on the part of the operatorand with the least possible predetermined movement of the carriage;second, to retain the tilt-table in any required position at the will ofthe operator; third, to assist the operator in feeding the shingle-boltto the saw; fourth, to pre-- vent the bolt from coming in engagementwith the saw at the will of the operator. These objects I accomplish bymeans of the mechanism illustrated in the accompanying drawings, inwhich- Figure 1 is a perspective view showing an end, side, and top of ashingle-machine containing my improvements. Fig. 2 is an end elevationwith a part of the framework removed in order to show the automatic tiltand adj unctive parts. Fig. 3 is a longitudinal sectional view of thetilt, cam, and adjunctive parts. Fig. 4 is a longitudinal sectionthrough the center of the shaft bearing the point-controlling hand-nuts.Fig. 5 is a side elevation of a part of the machine with tiltingmechanism omitted in order to show more clearly the mechanicalshingle-boltfeeding mechanism; Fig. 6,detail view of feedchain take-up;Fig. '7, detail view of tiltingcam; Fig. 8, front elevation of tiltingdogarm; Fig. 9, side elevation of dog-arm and escapement-bar; Fig. 10,plan view of mechanism connecting trip-lever on dog-handle andtilting-chain; Fig. -11, elevation of doghandle connections withtilt-chain support re moved.

Similar letters refer to similarparts throughout the several views.

The general construction of this class of machines consists of a sawsuitably supported and driven, a reciprocating carriage provided withdogs for grasping and holding the shingle-bolt, a support for sustainingthe reciprocating carriage, and a tilt-table outside of the carriage fordetermining and controlling the thickness of the shingles severed fromthe block.

Ordinarily the inclination of the upper surface of the tilt-table inrelation to the plane of the saw is made for every shingle separatedfrom the block, the change being preferably made immediately after theshingle has been severed and before the bolt again rests on thetilt-table. Frequently, on account of an imperfection in theshingle-bolt, it becomes desirable to have the tilt-table remain in itsadjusted position while several shingles are severed therefrom. Themethod of shifting the tilt-table, hereinafter described, is animprovement upon my patent dated March 1, 1892, Serial No. 469,976. Inprevious methods known to me employed to secure this resultautomatically on a hand-feed machine the power to produce the same isderived entirely from the carriage, which engages with the shiftingdevice and the tilt, the force of power required emanating directly fromthe sawyer, producing a jerking or jarring strain upon him of anintensity proportionate to the perfectness or crudeness of the mechanismemployed.

In my improved device the strain and labor on the sawyer are reduced toa minimum, and the greater part of the power required to operate themoving parts is derived from the belt or other connection from the powerwhich operates the saw, thereby lessening the labor of the operator andenabling him to work more efficiently and more rapidly, increasing theoutput of shingles with less expenditure of physical exertion.

Any suitable form of tilting mechanism can be used. In the illustration,however, the

mechanism shown and described is substantially the same as that shownand described in my patent above referred to; but I do not confinemyself to such form. I

The following-described mechanism may be applied to varying forms oftilting machinery.

1 is the machine-frame.

25 is the tilting table, which tilting table may be of any suitableform; but I have shown substantially the tilt described in my patentabove referred to. It may be constructed so as to include any suitableform or thickness of butt or point controlling mechanism.

3 is a cam and escapement wheel suitably supported.

4 is a pivotal armextending from the cam 3 to the tilt-shifting arm 5.

6 is a revolving shaft suitably supported in bearings 7.

S is a pulley from which connection may lead to any suitable drivingpower. A gear or any well-known equivalent may be substituted for thepulley 8.

The face of the friction flange or sleeve 9 on the shaft 6 engages withthe corresponding surface on cam 3. Sleeve 9 turns with the shaft 6 andhas longitudinal movement thereon. A spring 10, (shown in the drawingsas a coil-spring,) which bears against the sleeve 9, maintains aconstant friction pressure between sleeve 9 and the earn 3. Thispressure is sufficient to rotate the cam and operate the tilt when notrestrained, as hereinafter described. A collar 11 is attached to theshaft 6, or it may be made integral therewith. A second collar or flange12 is attached to cam 3, or it may be made integral therewith. Thiscombination of collars and friction pressure attach the same to theshaft 6 and prevent any balancing or offsetting of the frictionresistance on other parts of the mechanism, and also prevent anylongitudinal motion of shaft 6.

3 and 3 are stops on an inner and outer circle located on a projectingflange on cam 3. They are preferably integral with or attached to thecam 3 or parts connecting therewith. The contact-face of 3 is set backof 3 a distance proportionate to the thickness of the lug 14. A circulargroove 3 is formed on cam The groove may be of any pitch or outline thatwill adapt it to suitably actuate the tilting mechanism. Cam 3 ispreferably mounted on a sleeve 7,, that encircles shaft 6, )reventin gunnecessary friction therewith.

3 is a collar attached to sleeve 7 and retains cam 3 in itspredetermined longitudinal position with shaft 6.

11 is a pivotal arm having a. lug 14: on one end and the slot connection14 with a second pivoted arm 15 at the opposite end. The cord, chain, orother equivalent device 16 is attached to suitable supports on ashingle-boltholding carriage, preferably located adjacent to oppositecorners of the carriage on the movable-dog end of the carriage. Arm 15has an engaging surface or dog, as 15, proportioned to the size and formof the flexible connection. 15 may be provided with a slot in order tofacilitate its adjustment. 15 has a straight surface free from abuttingor engaging projections or slots.

15 is a bar or guard to retain or confine the flexible connection orchain. The backward movement of the carriage will leave the arm 15inclined away from the saw, (see Figs. 1 and 2,) the lug 14 engagingwith the stop 3". In the backward movement of the carriage the chain,cord, or flexible connection is drawn by the inclination of the arm 15to the bottom of the slot or engaging surface 15, engaging with said armand carrying it along as the arm 15 passes over its pivotal center. Theaction of the angle of inclination to the path of continuous movement ofthe chain or cord is to release its engagementwith the arm 15, and itthen slides id-lyalong, ofiering practically no resistance to thefriction of the carriage motement. The movement of the arm 15 from rightto left raises the lug 1i, severing the connection with stops 3*,releasing the cam 3. The friction tension-sleeve 9, acting on cam 3, nowrevolves it until stop 3 engages with lug 14.. The forward movement ofthe carriage in a similar way lowers the lug 14: from stop 3, when thefriction acts to force and maintain engagement between stop 3 and lug14.

It will be noted that the cam revolves the distance from 3 to 3 at asingle impulse when the carriage is on a backward movement or is movedaway from the saw, the forward movement of the carriage allowing the camto revolve from 3 to 3 a short distance only, and the cam-face at thatsection being made straight to preventany shift or change of the tilt.This forms a convenient escapement mechanism for the required purpose,but other escapement mechanism may be used.

The direct connection to the tilt-table (rod 5) has imparted to it areciprocating motion by the cam rotation. Rod 5 is screw-threaded on theouter end. (See Fig. 4.) I-Iavingscrewthreaded engagement therewith arethe handnuts 17 and 18 with their corresponding jamnuts 19 and 20. Asleeve 21 fits loosely over 1 rod 5 and is preferably fitted into capsor nuts 17 and 18, thereby excluding fine dust from the contact-set of17 and 21 and 18 and 21. Sleeve 21 is suitably attached to the-arm 4.The opposite end of rod 5 is pivoted to reciprocating-point screw-bar22. The shingle-bolt-supporting table 25 rests on two hinged supports 23and 24:. These supports are journaled on two rods 26 and 27, which areseated on the main frame of the tilt-table proper. The rod 5 has alimited amount of motion by means of cam 3. This motion is preferably inexcess of that required to actuate the tilt-table. The latitude given torod 5 before its travel acts on table 25 is gaged by the hand-nuts 17and 18, and the thickness of the shingle-points are, therefore, gagedaccordingly. A sleeve 33 encircles the dog-rod 32 and has a freelongitudinal movement thereon. Spring 34 bears against the sleeve 33 onone end and engages with the collar attached to the rod 32 on itsopposite end. The lever 35is centrally pivoted to the rod 32 and bearsagainst the sleeve 33. A link 36 is pivoted at one end to the sleeve 33and at the opposite end to an arm 37 on square shaft 33. The squareshaft 38 passes through arm 37, which is suitably journaled on lug 39,supported from the carriage. The opposite end of 37 is attached to theconnecting-rods 30 and 31, which complete the engagement between the arm37 and the bell-cranks 30 and 31. Shaft 38 passes through arm 37, havinglongitudinal sliding motion therein.

The cord, chain, or other equivalent device 16 is shown connected to thecarriage by means of the bell-cranks 30 and 31. The chain is connectedto a spring 16*, which holds the chain under tension for the purpose ofproviding a yielding strain in case of a quick action on theescapement-arm 15 and causes the chain to assume its normal positionafter having been thrown out of engagement with arm 15. Bell-cranks 30and 31 are suitably supported from the carriageframe.

32 is a rod or connection to which the dogoperating mechanism isattached and is substantially the same as in my previous patent abovereferred to. The dog-rod travels with the dog and varies in its distancefrom the bell-cranks 30 and 31, the rod 38 sliding through the squareopening in the arm 37 The flexible feed is composed, preferably, of twochains 40. Each chain passes over rollers .41 and 42 and engages withchain-wheel 43,

substantially as shown in Fig. 5. The upper surfaces of these chains arein the same plane and project a short distance above the shingle-boltways 53, so as to support or partially support the shingle-bolt, and thedistance of this upward projection may be adj usted by sliding the bar53 horizontally, or by any other suitable means.

44 and 45 are incline slots receiving the bolts which support the bar53.

The operation of this part of my invention is as follows: Theshingle-bolt is placed in the shingle bolt holding carriage, restingupon the upper surfaces of the chain 40, which chains are supported upona plane surface of the tilt-table 25. The bolt-supporting surfaces ofthe chains have a continuous movement toward the saw and carry or tendto carry the bolt in that direction. I prefer to so adjust the chainthat it will require little or no effort on the part of the sawyereither to propel the bolt to the saw or to check the movement of thebolt, allowing the chains to run idly beneath it.

The chains resting upon the tilt-tables are respectively raised andlowered as the table is tilted, which has the effect to tighten orloosen each chain alternately upon its chainwheel 43. To retain thechain always in position to be operated by its chain-Wheel, I provide aguard 46. This prevents the chain from moving out of operativeconnection with the chain-wheel. In order to prevent the chain frommoving the bolt upon the saw, I provide a stop 47, one on each side,which stops may be lifted above the surface of the tilt-table by meansof the pivoted handle 48, connecting-rods- 49, and bell-cranks 50, whichactuate the stops 47, so as to intercept and check the shingle-bolt inits forward movement toward the saw.

In case it becomes desirable for any reason to dispense with thechain-feed its operating mechanism is disconnected. The shaft 6 is madein two parts connected by means of two clutches 6 and 6 with face lugsor projections, the clutch 6* having a longitudinal or sliding motion onthe shaft, occurring midway between the clutch connections.

It is within the spirit of my invention, and I desire to cover the novelfeatures of my invention, whether used as a whole or in part.

Having thus described my invention, what I claim to have invented, anddesire to secure by Letters Patent, is-

1. In a shingle-machine, the combination with an intermittently-rotatingtilt-actuating cam, an escapement and a shingle-carriage adapted toactuate said escapement, substantially as described.

2. In a shingle-machine, the combination with an intermittent escapementmovement, the beats of which are determined by carriage travel, of atilt-actuating cam operated through said movement, and suitable powerfor operating the same.

3. In a shingle-machine, the combination with an intermittently-rotatingtilt-actuatin g cam, of an escapement partially actuated by carriagemovement.

4. In a shingle-machine, the combination with a reciprocating carriage,an escapement outside of said carriage, an arm connected to saidescapement, surfaces on said carriage that shift the said arm tocorrespond to the carriage movement, and a tilt-table operated by thesaid escapement, substantially as described.

5. In a shingle-machine, the combination with a movable carriage, of anintermittentlymoving tilting mechanism adapted to convey intermittentmovement to the tilt-table, a tilt-table, an escapement mechanism, andsuitable mechanism for automatically releasing said escapement mechanismfrom the op eration of the carriage when said carriage is shifted,substantially as described.

6. In a shingle-machine, the combination with a rotating tilt-actuatingcam and a plurality of stops having a synchronism of movement therewith,a trip or abutting surface, and a movable carriage adapted to come incontact with the said trip or abutting surface IIO and to actuate thesame, substantially as described.

7 In a shingle-machine, the combination with a movable carriage, of arelease or escapement device, a train of mechanism, a suitable power foroperating said train of mechanism, and a tilting-bloclvregulating table,substantially as described.

8. In a shingle-machine, the combination with a reciprocating carriage,a tilting-table, a train of operative mechanism connected thereto, andan escapement device forcontrolling said train of mechanism.

9. In a shingle-machine, the combination of a yielding device having anoperative en gagement in normal position with an escaping device, anescaping device substantially as described, and suitable mechanism forshifting said yielding device into inoperative adjustment with saidescapemcnt, substantially as described. 7

10. In a shingleanachine, the combination of a reciprocating carriageadapted to support a shingle-bolt, a saw, a moving supporting-surfacebeneath the shingle-bolt for supporting in whole or in part theshingle-bolt, and adapted to propel or assist in propelling theshingle-bolt toward the saw.

11. In combination with a movable carriage, of a tilt-table and amovable bolt-supporting feed and suitable mechanism for giv in g aforward movement of said bolt-supporting feed toward the saw.

12. A movablebolt-su pporting feed, in combination with a tilt-table,upon which said feed is supported, and suitable mechanism for operatingsaid feed, substantially as described.

13. The combination with a carriage, of a movable flexible feed, atilt-table supporting said flexible feed, and suitable mechanism foroperating said feed.

14. The combination of a movable feed, a tilt-table supporting saidfeed, suitable mechanism for giving the forward movement to said feed,and a stop for arresting the movement of the shingle-bolt supported onsaid feed, substantially as described.

' 15. The combination with a flexible boltfeecha tilt-table supportingsaid feed, chainwheels engaging with said feed, and suitable mechanismfor giving the required movement to the feed, substantially asdescribed.

In witness whereof I have hereunto set my hand and seal in the presenceof twowitnesses.

WILLIS J. PERKINS. [n s.] \Vitnesses:

M. Loursn WRIGHT, CHRISTOPHER HONDELINK.

